

To confirm that the Administrator account is available, select, then. Yamaha USB-MIDI Driver Installation and Upgrade (for Mac)ġ Disconnect all USB devices other than the mouse and keyboard from the computer.Ģ Start the computer and log in to the Administrator account. The USB-MIDI driver is software that transfers MIDI data back and forth between PC software and Yamaha USB-MIDI devices. Continue to set up any other MIDI equipment you have.- Now supports Mac OS X 10.8 / 10.9 / 10.10 / 10.11 / 10.12 Once you make a New Configuration you should see "SL MkII" "Launchkey" or whatever device you have properly.This will not work if the controller is not plugged in. With the Controller plugged in click the drop-down and make a New Configuration.


This has now been found on a number of different MIDI Devices including Impulse, SL MkII, Launchpad S, Launchkey, etc. This causes odd behaviour, such as Devices not being available for use in programs, missing ports, Automap Buttons not working or connecting. We have seen a small number of users with various Class Compliant USB MIDI Devices have an issue using Mac OS where the MIDI Devices do not appear properly to the computer.
